DOCSLIB.ORG

A Low Cost Analog and Digital TV (DVB-T) Modulator

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

A Low Cost Analog and Digital TV (DVB-T) Modulator http://fabrice.bellard.free.fr/dvbt/ A Low Cost Analog and Digital TV (DVB-T) Modulator News (Jun 13, 2005) First public release What is it ? This is not a hoax ! With a PC running Linux and a recent VGA card, you can emit a real digital TV signal in the VHF band to your DVB-T set-top box. DVB-T emitters are usually very expensive professional devices. Now with a standard PC you can broadcast real DVB-T channels ! Examples to transmit PAL or SECAM analog signals directly to your TV are also presented. What do you need ? A good knowledge of X Window and Linux and basic knowledge in electronics. A DVB-T set-top box able to receive VHF signals with a bandwidth of 8 MHz (unfortunately most decoders sold in UK only receive UHF signals). You can use French DVB-T receivers which accept VHF and UHF RF signals. A PC with a recent VGA card able to display in resolutions up to 4096x2048 with 8 bit per pixel with a pixel clock of exactly 76.5 MHz. ATI Radeon 9200SE are reported to work (their PLL can generate every frequency which is a multiple of 2.25 MHz up to 400 MHz). Other VGA cards may work too. If your card cannot generate a 76.5 MHz pixel clock, I can provide alternate images to do some testing. A cable connecting the VGA output to the set-top box RF input. It is possible to use antennas, but since the transmit power is very low, it is better to begin with a cable connection. 15 pin VGA connector 9.5mm RF connector ------------------- ----------------------- 1 (red signal) <-----> RF signal (central pin) 6 (red ground) <-----> GND Screenshots Here are some screenshots showing the transmitted pictures. A Netgem iplayer DVB-T set-top box was used as receiver. The On Screen Display of the set-top box shows the signal parameters and quality. The pictures were grabbed using a PC TV grabber connected to the composite video output of the set-top box. 1 of 4 8/8/05 11:06 PM A Low Cost Analog and Digital TV (DVB-T) Modulator http://fabrice.bellard.free.fr/dvbt/ How to proceed ? 2 of 4 8/8/05 11:06 PM A Low Cost Analog and Digital TV (DVB-T) Modulator http://fabrice.bellard.free.fr/dvbt/ Add the following configuration at the end of your X Window server configuration file (usually /etc/X11/XF86Config or /etc/X11/Xorg.conf): ######################################### #VGA modulator config Section "Monitor" Identifier "MonitorDAC" VendorName "Monitor Vendor" HorizSync 1.0 - 200.0 VertRefresh 1.0 - 200.0 Mode "dac1" DotClock 76.50 # PAL/SECAM HTimings 4064 4064 4072 4080 VTimings 748 748 749 750 EndMode Mode "dac2" # DVB-T DotClock 76.50 HTimings 3656 3656 3664 3672 VTimings 1307 1307 1308 1309 EndMode EndSection Section "Screen" Identifier "ScreenDAC" Device "Videocard0" Monitor "MonitorDAC" DefaultDepth 8 SubSection "Display" Depth 8 Modes "dac2" EndSubSection EndSection ######################################### This configuration won't be used by default by the X Window server, so you can leave it in your default X Window configuration. VideoCard0 is assumed to be the name of your default video card. Launch an X server using this configuration (we assume the display :0 is your already running X11 display): X :1 -ac -screen ScreenDAC Your monitor will of course not be able to display anything because the timings are far from correct VESA timings. Unless you are using a very old monitor, there is no chance you can destroy it... Wait a few seconds and switch back to the starting X11 display (in most Linux distributions Ctrl-F7 does it). Then look at the X11 log file to see if everything was OK (usually in /var/log/XFree86.1.log or /var/log/Xorg.1.log). Download the following gray level image: dvbt.pgm.gz and decompress it. Display it on the :1 X11 display: display -display :1 -window root dvbt.pgm Switch to the :1 display (usually with Ctrl-F8 or Ctrl-F9, your monitor will blank) and connect the set-top box RF input to the VGA output using the cable you made. Configure your DVB-T set-top box to do a manual scan on channel 5 (178.75 MHz central frequency). After a few seconds, it should find a valid DVB-T signal (parameters: QAM 16, fft=2K, guard=1/32, conv=2/3). Two new channels should appear: Lena Picture and Balears Picture. Each one should display a nice still picture. You can also try the PAL (pal.pgm.gz) or SECAM (secam.pgm.gz) analog signals. You need to connect the VGA cable directly to your TV RF input and to use the dac1 X11 mode instead of dac2 (edit the X11 configuration file): ... SubSection "Display" Depth 8 Modes "dac1" EndSubSection ... Then by tuning your TV on the VHF channel 5 (176.00 MHz image frequency) you should see a black and white Lena 3 of 4 8/8/05 11:06 PM A Low Cost Analog and Digital TV (DVB-T) Modulator http://fabrice.bellard.free.fr/dvbt/ picture. How does it work ? Every VGA card contains high speed Digital to Analog Converters (DACs), one for each Red, Blue and Green component. Here we use only the red DAC. The provided images have been computed so that the signal output to the DAC is a valid RF signal. As we did not want to generate a 176 MHz signal directly, we use the fact that the VGA DACs generate a lot of harmonics. The real generated DVB-T signal has a central frequency of 25.71 MHz. Then the second harmonic has a frequency of 25.71+2*76.5 = 178.71 MHz which is almost exactly the central frequency of the VHF TV channel 5. The DVB-T signal is generated with a DVB-T and DVB-H modulator I wrote from scratch. This is the most complicated step because the DVB-T modulation is quite complicated (COFDM modulation). A custom polyphase filter is used to interpolate the baseband COFDM complex signal. Then it is translated to the 25.71 MHz frequency. I used a patched version of FFmpeg to generate a custom DVB Transport Stream containing two DVB services. Each one contains a still MPEG picture. One of the still picture is the very nice Lena. For PAL and SECAM, I also wrote a simple TV black and white PAL encoder. Adding color would be possible, but I am not motivated enough to do it :-) Related links Tempest for Eliza is an AM radio modulator also using a VGA card. I got the idea of transmitting TV signals with a VGA card by looking at this project. The GNU Radio project contains source code for several modulators. Interesting Ideas This project can be the basis of a real time low cost DVB-T and DVB-H modulator. Interested compagnies can contact me if they want to subsidize such a project. It can be very useful to test DVB-T set-top boxes, DVB-H cell phones and to test interactive broadcasted DVB-T or DVB-H applications. This project, coupled with the GNU Radio project, can be the basis of many student projects to study digital communications. Compared to other solutions, it has the advantage of a very low cost (PCs are available everywhere). Students could write their own modulation code and immediately test the result with a DVB-T set-top box for example. Interested universities can contact me. With a very simple analog frequency translator, it could be possible to reach a better SNR (currently 14 dB is the maximum I could get in the VHF band) and higher frequencies. Color encoding could be added to the PAL/SECAM encoder and NTSC support. Where is the source code ? It is currently not available, although I plan to release it someday, provided enough people ask me to. Copyright (c) 2005 Fabrice Bellard. Fabrice Bellard - http://bellard.org/ 4 of 4 8/8/05 11:06 PM.
Recommended publications
  • Console Comparison

    Console Comparison

    CONSOLE COMPARISON CURRENT INTEGRITY Cybex 50L Console C Console X Console Discover ST Cybex 70T Discover SE3 Discover SE3HD SCREEN 21" 1080p Touch Screen (Tread) 19" 720p Touch Screen (Tread) 21" 1080p Touch Screen (Tread) Display LED LED LED 7" Touch LCD 16" 1080p Touch Screen (Tread, Bikes and Arcs) 16" 1080p Touch Screen (Non-Tread) 16" 720p Touch Screen (Non-Tread) 16" 1080p Touch Screen (Non-Tread) Navigation Membrane buttons Membrane Buttons Membrane Buttons Touch, Tactile Buttons Touch Screen Touch Screen Touch Screen Touch Screen Languages 9 Universal Universal 19 24 24 24 24 Speed, Distance, Distance Climbed, Average Pace, Average Speed, Speed, Incline, Heart Rate (current, average, max), Pace, Elapsed Speed, Incline, Heart Rate (current, average, max), Pace, Elapsed Speed, Incline, Heart Rate (current, average, max), Pace, Elapsed Speed, Incline, Heart Rate (current, average, max), Pace, Elapsed Speed, Incline, Heart Rate, Elapsed Time, Pace, Distance, Distance Display Readouts - Treadmills Speed, Time, Distance, HR, Calories, Incline, Pace Speed, Time, Distance, HR, Calories, Incline Total Cal Burned, Average METs, Average Watts, Average HR, Max Time, Time Remaining, Time in Zone, Time of Day, Distance, Distance Time, Time Remaining, Time in Zone, Time of Day, Distance, Distance Time, Time Remaining, Time in Zone, Time of Day, Distance, Distance Time, Time Remaining, Time in Zone, Time of Day, Distance, Distance Climbed, Calories, Calories/HR HR Climbed, Distance Remaining, Calories, Calories/HR Climbed, Distance Remaining,
  • BA(Prog)III Yr 11/04/2020

    BA(Prog)III Yr 11/04/2020

    BA(prog)III yr 11/04/2020 Analog Video • In an analog system, the output of the charge-coupled device (CCD) is processed by the camera into three channels of color information and synchronization pulses (sync) and the signals are recorded onto magnetic tape. • There are several video standards for managing analog CCD output, each dealing with the amount of separation between the components—the more separation of the color information, the higher the quality of the image (and the more expensive the equipment). • If each channel of color information is transmitted as aseparate signal on its own conductor, the signal output is called component (separate red, green, and blue channels), which is the preferred method for higher-quality and professional video work. • Lower in quality is the signal that makes up Separate Video (S-Video), using two channels that carry luminance and chrominance information. The least separation (and thus the lowest quality for a video signal) is composite, when all the signalsare mixed together and carried on a single cable as a composite of the three color channels and the sync signal. • The composite signal yields less-precise color definition, which cannot be manipulated or color-corrected as much as S-Video or component signals. • The analog video and audio signals are written to tape by a spinning recording head that changes the local magnetic properties of the tape’s surface in a series of long diagonal stripes. • Because the head is canted or tilted at a slight angle compared with the path of the tape, it follows a helical (spiral) path, which is called helical scan recording.
  • NTE15039 Integrated Circuit VHS/VCR Chroma Signal Proessor for NTSC/PAL/SECAM Systems

    NTE15039 Integrated Circuit VHS/VCR Chroma Signal Proessor for NTSC/PAL/SECAM Systems

    NTE15039 Integrated Circuit VHS/VCR Chroma Signal Proessor for NTSC/PAL/SECAM Systems Description: The NTE15039 is a multifunctional IC in a 24–Lead DIP type package that contains VHS VCT chroma signal processing circuitry. Since the package is small and a minimum number of external compo- nents are required, the NTE15039 occupies much less space on the PC board thus facilitating VCR design. The chroma section is made adjustment–free (except REC chroma level) thus streamlining the manufacture of VCRs Features: D Designed for NTSC/PAL/MESECAM Systems D Adjustment–Free Chroma Section (Except REC Chroma Level) D Few External Components Required D LPF Usable for REC/PB D Multifunctional: 2fSC Generator for CCD Drive Function to Select APC Loop Input Signal Passed/Not Passed Through Comb Filter 3rd Lock Protector of VXO Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VCCmax. 7V Allowable Power Dissipation (TA ≤ +65°C), PDmax. 850mW Operating Temperature Range, Topg . –10° to +65°C Storage Temperature Range, Tstg . –40° to +125°C Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Recommended Supply Voltage, VCC . 5V Operating Voltage Range, VCCop. 4.8 to 5.5V Electrical Characteristics: (TA = +25°C, VCC = 5V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit REC Current Dissipation ICC(R) 49 62 75 mA REC Output Level VO(R) 75 110 145 mVP–P REC ACC Characteristics ∆VO(R) Input ± 6dB –0.5 ±0.1 +0.5 dB Electrical Characteristics (Cont’d): (TA = +25°C, VCC
  • ATSC: Digital Television Update

    ATSC: Digital Television Update

    ATSC: Digital Television Update Robert Graves Advanced Television Systems Committee ITU Interregional Seminar on the Transition from SECAM to Digital TV Broadcasting Kiev, Ukraine November 13, 2000 Advanced Television Systems Committee q Technical Standards for Digital Television (DTV) q DTV Implementation Activities q Membership Organization -- International – Open to all organizations with a related interest – Broad, cross-industry participation • Broadcasters, cable, satellite, computer, movie & telecom service providers • Consumer electronics, computer & professional equipment companies q Over 200 Members – Growing A2 Options for DTV Business Models q HDTV (one or two programs) q HDTV + SDTV (e.g., weather, news, alternative program) q Multiple programs of SDTV q Data services – Program-related or not – Interactive or one-way q Combinations of HDTV, SDTV, data services q Programs or data to mobile receivers? – Severe trade-off against deliverable bit rate q Broadcast to TVs, PCs, or convergence products q Free-to-air vs. pay services q Impact of potential government requirements – Minimum HDTV requirements? G2 DTV CHANNEL ASSIGNMENTS IN THE U.S. (VHF and UHF) Spectrum Efficiency CURRENT NTSC CHANNEL DISTRIBUTION 2-4 5-6 7 - 13 14 - 36 38 - 69 18 12 42 138 192 = DTV CHANNEL ALLOCATION - END OF TRANSITION CORE DTV SPECTRUM 2-4 5-6 7 - 13 14 - 36 38 - 51 52 – 69 (recovered) 18 12 42 138 84 = 294 MHz 108 MHz RECOVERED Progress in DTV Deployment qCurrent requirement: – 120 Stations – 30 Metropolitan Areas 10010101001101001110110 qActual
  • 1152/8/3/10 (IR) British Sky Broadcasting Limited

    1152/8/3/10 (IR) British Sky Broadcasting Limited

    Neutral citation [2014] CAT 17 IN THE COMPETITION Case Number: 1152/8/3/10 APPEAL TRIBUNAL (IR) Victoria House Bloomsbury Place 5 November 2014 London WC1A 2EB Before: THE HONOURABLE MR JUSTICE ROTH (President) Sitting as a Tribunal in England and Wales B E T W E E N : BRITISH SKY BROADCASTING LIMITED Applicant -v- OFFICE OF COMMUNICATIONS Respondent - and - BRITISH TELECOMMUNICATIONS PLC VIRGIN MEDIA, INC. THE FOOTBALL ASSOCIATION PREMIER LEAGUE LIMITED TOP-UP TV EUROPE LIMITED EE LIMITED Interveners Heard in Victoria House on 23rd July 2014 _____________________________________________________________________ JUDGMENT (Application to Vary Interim Order) _____________________________________________________________________ APPEARANCES Mr. James Flynn QC, Mr. Meredith Pickford and Mr. David Scannell (instructed by Herbert Smith Freehills LLP) appeared for British Sky Broadcasting Limited. Mr. Mark Howard QC, Mr. Gerry Facenna and Miss Sarah Ford (instructed by BT Legal) appeared for British Telecommunications PLC. Mr. Josh Holmes (instructed by the Office of Communications) appeared for the Respondent. EE Limited made written submissions by letter dated 9 May 2014 but did not seek to make oral representations at the hearing. Note: Excisions in this judgment (marked “[…][ ]”) relate to commercially confidential information: Schedule 4, paragraph 1 to the Enterprise Act 2002. 2 INTRODUCTION 1. On 31 March 2010, the Office of Communications (“Ofcom”) published its “Pay TV Statement.” By the Pay TV Statement, Ofcom decided to vary, pursuant to s. 316 of the Communications Act 2003 (“the 2003 Act”), the conditions in the broadcasting licences of British Sky Broadcasting Ltd (“Sky”) for what have been referred to as its “core premium sports channels” (or “CPSCs”), Sky Sports 1 and Sky Sports 2 (“SS1&2”).
  • Amateur Extra License Class

    Amateur Extra License Class

    Amateur Extra License Class 1 Amateur Extra Class Chapter 8 Radio Modes and Equipment 2 1 Modulation Systems FCC Emission Designations and Terms • Specified by ITU. • Either 3 or 7 characters long. • If 3 characters: • 1st Character = The type of modulation of the main carrier. • 2nd Character = The nature of the signal(s) modulating the main carrier. • 3rd Character = The type of information to be transmitted. • If 7 characters, add a 4-character bandwidth designator in front of the 3-character designator. 3 Modulation Systems FCC Emission Designations and Terms • Type of Modulation. N Unmodulated Carrier A Amplitude Modulation R Single Sideband Reduced Carrier J Single Sideband Suppressed Carrier C Vestigial Sideband F Frequency Modulation G Phase Modulation P, K, L, M, Q, V, W, X Various Types of Pulse Modulation 4 2 Modulation Systems FCC Emission Designations and Terms • Type of Modulating Signal. 0 No modulating signal 1 A single channel containing quantized or digital information without the use of a modulating sub-carrier 2 A single channel containing quantized or digital information with the use of a modulating sub-carrier 3 A single channel containing analog information 7 Two or more channels containing quantized or digital information 8 Two or more channels containing analog information X Cases not otherwise covered 5 Modulation Systems FCC Emission Designations and Terms • Type of Transmitted Information. N No information transmitted A Telegraphy - for aural reception B Telegraphy - for automatic reception C Facsimile D Data transmission, telemetry, telecommand E Telephony (including sound broadcasting) F Television (video) W Combination of the above X Cases not otherwise covered 6 3 Modulation Systems FCC Emission Designations and Terms • 3-character designator examples: • A1A = CW.
  • Important Notice

    Important Notice

    IMPORTANT NOTICE THIS OFFERING IS AVAILABLE ONLY TO INVESTORS WHO ARE NON-U.S. PERSONS (AS DEFINED IN REGULATION S UNDER THE UNITED STATES SECURITIES ACT OF 1933 (THE “SECURITIES ACT”) (“REGULATION S”)) LOCATED OUTSIDE OF THE UNITED STATES. IMPORTANT: You must read the following before continuing. The following applies to the attached document (the “document”) and you are therefore advised to read this carefully before reading, accessing or making any other use of the document. In accessing the document, you agree to be bound by the following terms and conditions, including any modifications to them any time you receive any information from Sky plc (formerly known as British Sky Broadcasting Group plc) (the “Issuer”), Sky Group Finance plc (formerly known as BSkyB Finance UK plc), Sky UK Limited (formerly known as British Sky Broadcasting Limited), Sky Subscribers Services Limited or Sky Telecommunications Services Limited (formerly known as BSkyB Telecommunications Services Limited) (together, the “Guarantors”) or Barclays Bank PLC or Société Générale (together, the “Joint Lead Managers”) as a result of such access. NOTHING IN THIS ELECTRONIC TRANSMISSION CONSTITUTES AN OFFER OF SECURITIES FOR SALE IN THE UNITED STATES OR ANY OTHER JURISDICTION WHERE IT IS UNLAWFUL TO DO SO. THE SECURITIES AND THE GUARANTEES HAVE NOT BEEN, AND WILL NOT BE, REGISTERED UNDER THE SECURITIES ACT, OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR OTHER JURISDICTION AND THE SECURITIES AND THE GUARANTEES MAY NOT BE OFFERED OR SOLD, DIRECTLY OR INDIRECTLY, WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S.
  • Improved Television Systems: NTSC and Beyond

    Improved Television Systems: NTSC and Beyond

    • Improved Television Systems: NTSC and Beyond By William F. Schreiber After a discussion ofthe limits to received image quality in NTSC and a excellent results. Demonstrations review of various proposals for improvement, it is concluded that the have been made showing good motion current system is capable ofsignificant increase in spatial and temporal rendition with very few frames per resolution. and that most of these improvements can be made in a second,2 elimination of interline flick­ er by up-conversion, 3 and improved compatible manner. Newly designed systems,for the sake ofmaximum separation of luminance and chromi­ utilization of channel capacity. should use many of the techniques nance by means of comb tilters. ~ proposedfor improving NTSC. such as high-rate cameras and displays, No doubt the most important ele­ but should use the component. rather than composite, technique for ment in creating interest in this sub­ color multiplexing. A preference is expressed for noncompatible new ject was the demonstration of the Jap­ systems, both for increased design flexibility and on the basis oflikely anese high-definition television consumer behaL'ior. Some sample systems are described that achieve system in 1981, a development that very high quality in the present 6-MHz channels, full "HDTV" at the took more than ten years.5 Orches­ CCIR rate of 216 Mbits/sec, or "better-than-35mm" at about 500 trated by NHK, with contributions Mbits/sec. Possibilities for even higher efficiency using motion compen­ from many Japanese companies, im­ sation are described. ages have been produced that are comparable to 35mm theater quality.
  • Digital Radio-Relay Systems

    Digital Radio-Relay Systems

    - iii - TABLE OF CONTENTS Page CHAPTER 1 - INTRODUCTION........................................................................................ 1 1.1 INTENT OF HANDBOOK ..................................................................................... 1 1.2 EVOLUTION OF DIGITAL RADIO-RELAY SYSTEMS .................................... 2 1.3 DIGITAL RADIO-RELAY SYSTEMS AS PART OF DIGITAL TRANSMISSION NETWORKS............................................................................. 3 1.4 GENERAL OVERVIEW OF THE HANDBOOK .................................................. 5 1.5 OUTLINE OF THE HANDBOOK.......................................................................... 5 CHAPTER 2 - BASIC PRINCIPLES .................................................................................. 7 2.1 DIGITAL SIGNALS, SOURCE CODING, DIGITAL HIERARCHIES AND MULTIPLEXING .......................................................................................... 7 2.1.1 Digitization (A/D conversion) of analogue voice signals ........................... 7 2.1.2 Digitization of video signals........................................................................ 8 2.1.3 Non voice services, ISDN and data signals ................................................. 8 2.1.4 Multiplexing of 64 kbit/s channels .............................................................. 8 2.1.5 Higher order multiplexing, Plesiochronous Digital Hierarchy (PDH) ........ 8 2.1.6 Other multiplexers ......................................................................................
  • The User Manual for TF5800PVR

    The User Manual for TF5800PVR

    TOPFIELD TF 5800 PVR User Manual Digital Terrestrial Receiver Personal Video Recorder ii CONTENTS Contents Contents ii 1 Introduction and getting started 1 1.1 Unpacking .............................. 2 1.2 Remote control buttons and their functions ........... 3 1.3 Rear panel connections ....................... 6 1.4 Connecting up your PVR ..................... 8 1.4.1 Connecting the aerial to your PVR ............ 9 1.4.2 Connecting the PVR to your TV using a SCART . 9 1.4.3 Connecting the PVR to your TV using the RF output . 10 1.4.4 Connecting to your HiFi system . 10 1.5 Switching on for the first time ................... 10 1.5.1 Searching for TV and radio channels . 11 1.5.2 Basic system settings .................... 12 1.5.3 Time and date options ................... 12 1.5.4 AV output settings ..................... 13 1.6 Pay TV ................................ 15 2 Watching TV 17 iii 2.1 Starting to watch television .................... 18 2.1.1 Volume control ....................... 19 2.1.2 Changing channels ..................... 19 2.1.3 Radio channels ....................... 20 2.2 Electronic Programme Guide ................... 21 2.3 Time Shift television ........................ 23 2.3.1 Rewinding TV ....................... 23 2.3.2 Pausing TV ......................... 25 3 Recording and playing TV programmes 26 3.1 How your PVR records ....................... 26 3.2 Instant recording .......................... 28 3.3 Current event recording ...................... 30 3.4 Scheduled recordings ........................ 31 3.4.1 Scheduling a recording using the EPG . 31 3.4.2 Altering the details ..................... 33 3.4.3 Viewing your recording schedule . 35 3.5 Things you should know about recording on your PVR .
  • Secam Decoder

    Secam Decoder

    MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER [GENERAL DESCRIPTION] pin configuration The M52325AP is designed for SECAM chrominance decoding.The IC should preferably be used in conjunction with PAL / NTSC signal processor M52340SP and the fref / IDENT 1 16 CVBS IN switched capacitor baseband delay line. It consists of a bell filter,a demodulator and an identification BELL OUT 2 15 SAND IN circuit. The IC needs no adjustment and few external Vcc 3 M52325AP 14 BLACK ADJ. R components are required. A signal with highly stable BAND GAP 4 13 PLL auto 1 reference frequency is required for the calibration, and a three - level sandcastle pulse for blanking and burst gating. SACAM KILLER OUT 5 12 PLL auto2 GND 6 11 BLACK ADJ. B BELL ref. 7 10 - (B - Y ) OUT [FEATURES] PLL ref. 8 9 - (R - Y ) OUT • Fully integrated filters 16 PIN DIL PLASTIC PACKAGE • No adjustment • Few external compornents • Used with a switched capacitor baseband delay line [STRUCRURE] [APPLICATION] Bipolar Silicon Monolithic IC SECAM Color Television 16 PIN DIL PLASTIC PACKAGE [QUICK REFERENCE DATA] SYMBOL PARAMETER MIN. TYP. MAX. UNIT positive power supply Vcc pin3 7.5 8.0 8.5 V Icc supply current pin3 18 24 30 mA input dynamic range VDR - 1.0 1.4 Vp-p pin16 -(R-Y) output voltage amplitude VR-Y 0.85 1.00 1.15 Vp-p (peak to peak value) ;pin9 -(B-Y) output voltage amplitude VB-Y (peak to peak value) ;pin10 1.10 1.24 1.43 Vp-p MITSUBISHI 1 - 13 MITSUBISHI LINEAR INTEGRATED CIRCUIT M52325AP SECAM DECODER Vcc=8.0V 0.1µ F + BELL PLL PLL OUT 22µF auto2 auto1 0.1µF 2 12 13 3 BAND GAP BANDGAP 4 CVBS IN BELL ACC AMP PLL 16 FILTER B-Y 10 -(B-Y) BELL OUTPUT OUT ref.
  • Digital Solent Conference Report

    Digital Solent Conference Report

    Digital Solent Conference Report November 2017 Helping make the Solent the UK’s leading region for digital business growth 1 Helping make the Solent the UK’s leading Digital Solent region for digital business growth 1.0 Introduction Page 3 1.1 About the Digital Solent Conference Page 4 1.2 Aims of the conference 2.0 Speaker sessions Page 5 2.1 Session 1: The Digital Landscape Page 10 2.2 Session 2: Business benefits of digital presence Page 15 2.3 Session 3: Cyber resilience- risks and opportunities 3.0 Innovation Challenges Page 19 3.1 Summaries of each challenge Page 39 3.2 Continuation of winning project Page 41 4.0 Debriefing and next steps See appendices for speaker bios and attendees list 2 Helping make the Solent the UK’s leading Digital Solent region for digital business growth 1.0 Introduction 1.1 About the Digital Solent Conference As part of the development of an ambitious programme of regeneration that seeks to transform local economic prospects, the Isle of Wight Council worked in conjunction with the Solent LEP and VentureFest South to hold the first Digital Solent Conference, which took place on the 8th November 2017. The event was held at Cowes Yacht Haven on the Isle of Wight and was attended by 159 delegates (see appendix 2). Attendees included local companies active in the digital sector on the Island and in the wider Solent region, secondary school pupils, Isle of Wight council cabinet members and a range of representatives (see appendix 1), who shared their digital knowledge, experience and expertise.